Question

how to find the cosine and sine

Answer 1

I will try to help you with this, it is really simple once you get the hang of it, just memorization

Answer 2

okay thank you

Answer 3

Think of this as a coordinate system

Answer 4

https://www.khanacademy.org/math/trigonometry/unit-circle-trig-func/Trig-unit-circle/v/unit-circle-definition-of-trig-functions-1

Answer 5

okayy

Answer 6

You need to make sure you memorize this. cos is represented on the left side. So cos of 90 degrees(also known as pi/2) is 0. Sin is the right value. Sin of 90 degrees then is 1

Answer 7

so the cosine would be 0?

Answer 8

oh i see! okayy

Answer 9

so 60° would be sin 0.8 and cos 0.5?

Answer 10

Always write it in the square root form so it would be considered the right answer, don't forget this

Answer 11

so i would right sqrt3/2 instead of 0.8?